Thailand (ภาษาไทย)
ภาษาไทย

฿13,830+ Cheap flights to Portsmouth

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
2 Dec — 9 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2025

Find the latest flights to Portsmouth in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 2 November 2025.

Return from

฿22,180

One-way from

฿13,830

Popular in

January

Cheapest in

November

Average price

฿27,660
โอมานแอร์
  • โอมานแอร์
  • 5/12-24/1
  • 2 total stops
  • 31h 05m total
  • Bangkok to London
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19/1
  • 19/1
  • 3 total stops
  • 27h 30m total
  • Bangkok to Portsmouth
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (฿1,323 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease (฿257 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
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Find flight deals to Portsmouth

Enter your travel dates to find the best prices.

Cheapest flights to Portsmouth
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on 2 November 2025.

Sun 2/1120:30BKK - SOU
2 stops30h 10mQatar Airways
Sun 9/1109:30SOU - BKK
2 stops25h 55mQatar Airways
Deal found 1/11฿57,513
Sat 13/1219:50BKK - SOU
2 stops26h 45mQatar Airways
Wed 31/1212:25SOU - BKK
2 stops47h 00mQatar Airways
Deal found 1/11฿57,964
Sat 13/1218:55BKK - SOU
2 stops27h 40mQatar Airways
Tue 30/1212:25SOU - BKK
2 stops24h 00mQatar Airways
Deal found 1/11฿64,831
Sat 13/1220:30BKK - SOU
2 stops26h 05mQatar Airways
Mon 29/1220:10SOU - BKK
2 stops40h 15mQatar Airways
Deal found 1/11฿65,089
Sat 15/1118:55BKK - SOU
2 stops31h 45mQatar Airways
Sat 22/1109:30SOU - BKK
2 stops19h 45mQatar Airways
Deal found 1/11฿66,797
Sun 2/1102:00BKK - SOU
2 stops24h 40mQatar Airways
Sat 8/1109:30SOU - BKK
2 stops20h 35mQatar Airways
Deal found 1/11฿68,731

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 2 November 2025.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Thu 12/3

09:30-08:05

2 stops29h 35m

Southampton Eastleigh

Mon 16/3

17:30-10:05

1 stop33h 35m

฿35,204

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Wed 11/3

03:00-19:40

2 stops23h 40m

Southampton Eastleigh

Mon 16/3

09:30-13:05

2 stops20h 35m

฿48,841

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Mon 19/1

18:20-14:50

3 stops27h 30m

฿13,830

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Thu 27/11

09:05-15:35

2 stops37h 30m

฿18,795

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Tue 25/11

03:00-19:40

2 stops23h 40m

฿18,891

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Mon 24/11

02:00-19:40

2 stops24h 40m

฿18,891

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Mon 9/3

18:55-15:35

2 stops27h 40m

฿19,826

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Tue 31/3

20:00-19:30

2 stops29h 30m

฿19,891

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Wed 29/4

08:40-19:30

2 stops40h 50m

฿20,213

BangkokSouthampton

BKK - SOU

BKKSOU

Bangkok Suvarnabhumi

Mon 27/4

09:05-19:30

2 stops40h 25m

฿20,213

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Best time to book a flight to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Portsmouth

How long is the flight to Portsmouth?

On average, a flight from Bangkok to Portsmouth takes 29 hours 35 minutes. Flights to Portsmouth from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Portsmouth?

Use this chart to determine the cheapest time to fly return from Bangkok to Portsmouth. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Portsmouth should consider flying on Wednesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Tuesday at midday, when prices are usually at their highest.

Weekly flight availability to Portsmouth

The most flights from Bangkok to Portsmouth are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

FAQs about flying to Portsmouth

  • Can I find cheaper flights to Portsmouth if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, China Eastern is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a return flight to Portsmouth?

    A return flight to Portsmouth will typically cost around ฿5,566, however they can be found for as little as ฿5,450.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Phuket City offers the quickest one-way flight (28 hours 35 minutes).

  • Does London Heathrow have rental cars?

    Yes. Those touching down at London Heathrow can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aerotel London Heathrow T2 & T3 is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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